Machine for making barbed fence-wire



(Nd Model.) 2 Sheets-Sheet 1.

RH. TREAT.

MACHINE FOR MAKING BARBED FENCE WIRE.

No. 276,505. r Patented Apr.24, 1888.

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(No Model.) 2 Sheets -Sheet 2.

' P. H. TREAT.

MACHINE FOR MAKING BAR BED FENCE WIRE.

No. 276,505. Patented Apr. 24', 1883.

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FRANCIS H. TREAT, OF JULIET, ILLINOIS.

MACHINE FOR MAKING BARBED FENCE-WIRE.

SPECIFICATION forming part of Letters Patent No. 276,505, dated April 24,. 1883. Application filed April .28, 1882. (No model.)

To all whom it may concern:

Be it known that I, FRANo s H. TREAT, a citizen of the United States, residing at Joliet, in the county of Will and State of Illinois, have invented new and useful improvements in machines for making barbed fence wire from wire previously provided with a lateral rib or ribs-orleaves; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to the manufacture of that kind of barbed fence-wire which consists of a stem and barbs, integral therewith, the bars being formed by shearing and bending a rib or ribs or leaves on such wire.

The object of my invention is to form the barbs by a shearing and bending machine, de-

signed more especially to operate on the lea-fed wire produced by the practice of the invention described in another application for United States Letters Patent filed of even date. with i the application for this patent, though it may be readily adapted to operate on other forms of previously prepared wire.

Theinvention consists of certain mechanical combinations stated in the claims at the close of this specification, and composed mainly of shearing and bending and feeding devices.

In order that my invention may. be clearly understood, I have illustrated in the annexed drawings, and will proceed'to describe, the best form thereof at present known to me.

I Figure 1 is an end elevation of the machine. Fig. 2isa plan'view thereof. Fig. 3 is a vertical transverse section in tudinal section (on an enlarged scale) in the plane indicated by lines 5 6 in Figs. 2 and 3. Figs. 5, 6, 7, and 8 are detailed views, (on an enlarged scale,) Fig. 7 being a vertical longitudinal section in the plane indicated by lines 7 8 in Figs. 6 and 8, and Fig. 8 beinga section in the plane indicated by the lines 9 10 in Figs. 6 and 7.

The same letters of reference indicate similar parts in all the figures.

The operative parts of the machine are mounted and supported on a suitable stand or frame, A, provided at one end with bearin gs a a,

planes indicated by' lines 1 2 and 3 4 of Fig; 2. Fig. 4 is a longimain shaft carries the fast and loose pulleys B and B on either-one or the other of which a belt from a line-shaft is caused to run, according'as the machine is to be driven or remain at rest. An eccentric, Z),'on. the main shaft reciprocate-s horizontally a slide or crosshead, 0, by means of the eccentric-rod b, the cross-head sliding in suitable guides,cc, on the main frame. One blade, D, of the shears is adjnstably fixed upon the outer end of crosshead O, projecting some distance from the end thereof, and is moved thereby in a horizontal plane, its lower face moving just above the upper face of the other blade, E, of the shears. The blade E is adjustably fixed upon a bracket, M, on the main frame. The cutting-edge of this blade D stands a little obliquely, so that itwill cut with ashearing action, While the cutting-edge ofblade E is about square, sothat it may lie close along the side of the leafto be sheared and bent. Along the side at which the leaf of the wire enters between the shears the blade E is provided with a longitudinal rib, c, of about the height of the leaf of the wire, against the side and at the base of which leaf the semicircular or rounded end of the rib is to hear when the wire is in position to have one of its leaves sheared in part from the stem. Opposite to the end of this rib e the edge of blade D is cutaway to form a plunger at that point, having a substantially vertical face of ogee contour in horizontal cross-section, as shown at d; This plunger of the blade D acts, in conjunction with the rib c of blade E, to bend the sheared leaf tangentially at about right angles from thewire,

as shown in Figs. 2 and 6.

The leafed wire to be operated on. is fed to the combined shears and benders through a channel, 00, formed in the guide plates F F, which are secured in a seat on the main frame A and extend close up to the side of the shears and benders. The wire is introduced endwise in such manner that its round stem will occupy the rounded bottom of the channel, while its leaves project upwardly into the vertical flat portion of the channel. Thus the leafed wire will be fed-with its leaves projecting upward. The channel is so aligned with reference to the shearing-edges of the shear-blades that the latter will cut the upwardly-project. ing leaves of the wire close to the round stem thereof. At the end adjacent to the shears the upper side of the vertical flat portion of the channel :0 terminates in a wider groove, 00', open on top. The length of this groove 00 is somewhat greater than the distance from one end of a leaf on the wire to the similar end of the next adjacent leaf. The-leafed'wire is fed intermittently to the combined shears and benders by a reciprocating pawl, G, the free end of which, being guided in the groove 00, is provided with a bit, g, adapted to enter the flat vertical portion of the channel to and successively engage the wire behind the leaves thereof, as shown in Figs. 5 and 7. The pawl is pivoted on a horizontally-adjustable pin of the horizontally-sliding yoke H, mounted on a guide-rail, a", on the main frame. The pawl is held to its work by a spring, 9, supported bythe stud g and strained by a stud, 9 both of which studs are secured to yoke H. The yoke is reciprocated by the crank-pin iof the crankdisk 1 which crank-pin, preferably carrying a roller or sleeve, as shown in Figs. 2 and 8, plays in a "ertical groove, h, on the back of the yoke. The crank-disk is keyed on one end of the horizontal crank-shaft I, driven by the main shaft, through the bevel-gearing I. The throw of the crank-disk Pi is proportioned to the distance between the leaves from center to center, so that the pawl may properly feed the wire at each forward stroke, and its rotation is also properly timed with respect to the eccentric b of the main shaft, so that the wire will be fed as soon as the blade D has sufficiently receded from the blade E to permit of the recently-formed barb passing by its end.

In order that the wire may be firmly held during the shearing and bendingoperations on its leaves, I provide a presser-block, K, for forcibly pressing the wire against the end of blade E. This presser-block is carried on the upright arm, 7:, of a lever, K, fulcrumed at k on the main frame, and reaching with its other arm to a cam, b on the main shaft B, so that said cam may operate on an anti-friction roller.

carried by said lever to rock the lever in opposition to a spring, R and force the prcsserblock against the wire. Cam I) is properly timed with respect to eccentric b. As the grade of the cam escapes from the anti-friction roller of the lever, spring k rocks the lever in the opposite direction, so as to move the presser-block away from the wire.

If it be desired to crimp the wire on this machine after the barbs have been formed, a fixed crimping-die, L, may be mounted on the bracket 00 and a movable crimping-die, L, on

the cross-head G, as shown in Fig. 2.

As the barbed wire leaves the machine it may be wound on a gravitating reel, M, operated by the machine in the manner shownnamely, by means of a chain, on, which passes around the same core of the reel on which the wire is to be wound, so that the speed of rotation of the reel will change automatically to maintain a uniform winding surface speed. The chain m is driven by the chain-wheel N on the counter-shaft N of the machine, driven by beltgearing from the crank-shaft I, as best shown in Fig. 1. The driving side of the chain passes directly from the reel to the chainwheel N, while the slack side passes around the guide-pulleys m, m and m of which the one marked m is hungin a stirrup at the end of a rope which reeves over afixed elevated pulley, m and carries at its other end a counterweight, m applied to counterbalance the reel.

After the barbs have been formed on this machine the wire is to be twisted so that the barbs will stand out on all sides. The machine for performing this operation will be the subject-matter of an application for a patent which I intend to file hereafter.

Having thus described my invention, what I claim as new is-- 1. The combination, substantially as before set forth, of the two combined shear-blades and benders for forminga barb on aribbed or leafed wire by'shearing and bending.

2. The combination, substantially as before set forth, of the two combined shear-blades and benders and the presser-block.

3. The combination, substantially as before set forth, of the two combined shear-blades and benders, the presser-block, the lever carrying said presser-block, and the cam for operating on the lever.

4:. The combination, substantially as before set forth, of the two combined shear-blades and benders, the channel for guiding the wire, and the reciprocatingpawl for feeding the wire.

In testimony whereof I affix my signature in presence of two witnesses.

FRANCIS H. TREAT.

Witnesses:

GEO. J. MUNROE, S. O. SIMoNDs.

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